Ornamental-stitch sewing-machine.



W. MYERS.

ORNAMENT/XL STITCH SEWING MACHINE.

APPLICATION FILED DEC.3. L914.

lgl wfim I y PatentedSept. 11, 1917.

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WITNESSES: m6 MENTOR A467 xw/ Zl/allr 77 m BY w W 93AM WWW ATTORNEY W. MYERS.

ORNAMENTAL STITCH SEWING MACHINE.

' APPLICATION FILED 050.3.1914. 7

1,239,771 5. PatentedSept 11,1917, f, J 4 SHEETS-SHEET 2.

A v I 7@678. 7 ww ATTORNEY W. MYERS.

OR-NAMENTAL STITCH SEWING MACHINE. APPLICATION FILED mama. 1914.

1,239,715. Patentedsept. 11,1917.

4 SHEETS-SHEET 3.

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/I TTOR/VEV a s re r Fr WALTER MYERS, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO THE SINGER- MANUFACTURING COMPANY, A CQBPORATION OF NEW JERSEY.

ORNAMENTAL-STITGH SEWIN G-MACHIN E.

eeann Specification of Letters Patent.

mama se t. 111, ram.

Application filed. December 3,1914. Serial No. 875,210.

To all whom it may concern:

mental-Stitch ,Sewing-Machmes, of which the following is a specification, reference being had therein to the accompanying drawings. I

This invention relatesto improvements in attachments for embroidery or ornamental stitch sewing machines and has for its obj ect to provide improved means for efiecting circularly arranged designs. 3

In the accompanying drawings, which form a part of the specification, Figures 1, 2 and 3 are views in front side elevation,

.plan and rear side elevation respectively, of

one form of ornamental stitch sewing machine equipped with the present invention. Figs. 4, and 6, a sectional view of the needle vibrating mechanism including the switch-cam carried by the main-shaft; a perspective of the needle vibrating segmentlever and a like view of the needle vibrating segment-lever-carrier, respectively, the latter view including the switchcam follower. Fig. 7, a plan View of the cloth- .pIateQtOgether with the spur carrying slideplate. Fig. 8, arr under side view of Fig.7. Fig. 9, an end view of Fig. 7, a portion of the bed-plate being added in section. Fig.

'10, a perspective of the slide-plate securing lever. Fig. 11, aperspective of one of the slide-plate retaining brackets provided with bearings for the securing lever. Fig. 12, views illustrating the character of the circular ornamental designs effected by the present construction.

The present invention is shownas applied to a Singer ornamental stitch sewing machine, the same as is represented by my United States Patent No. 1,135,959, April 13,1915.

Referring tothe figures, 1 represents the bed-plate of the sewing machine upon which is mounted the bracket-arm comprising the standard 2 and arm bracket 3, 4 the mainor needle-bar driving shaft provided at. its

rear end with the handor band-wheel 5 and at its opposite end with the takeup.

earn 6, 7 the sewing needle, 8 the needlecarrying-bar operatively connected by the link-9 with said take-upcam, the needleca rrying-bar 8 being mounted in suitable bearings formed in the swinging gate 10 journaledon pintle screws, as 11, in a manner common to earlier constructions, 12 the take-up lever, 13 thread-tension and 14 the thread-controller.

15 represents the lower or looper actuatshaft operatively connected at its rear end by suitable quartering cranks, as 16, w th the main-shaft 4, its opposite end being provided with a flange 17 connected by link 18 with the crank 19 carried by the gearshaft 20 provided with the gear-member 21 operatively connected with a like gear-member 22 carried by the loop-taker driver 23, thus transmitting stitch-forming movements to the loop-taker 24, as in earlier constructions.

25 represents one form of commonly employed switch-cam into which tracks a follower 26 journaled in a suitable bearing 27 preferably formed integral with the segment-lever carrier 28, which latter is provided with a hollow shaft 29 journaled in a suitable bearing 30 formed in the bracket-arm, the rear end of said shaft being provided with a suitably secured collar 31 to hold said shaft against accidental endwise movement. 32 denotes a segment lever provided with a hollow shaft 33 journaled in the hollow shaft 29, a segmentalguide-slot 34, arcuate slot 35, notch 36 and spring-controlled plunger 37 provided with a teat 38 which registers with one or the other of the openings 39 or 40 formed in the segment lever carrier 28, de-

figure desired.

Into the hollow shaft 33 is slidably mounted a plunger 41 provided at one end with an enlarged oval head 42, its opposite end being threaded to receive the screw 43 whose slotted head 44 is arranged on the sideof the driving wall 45, formed integral with the shaft 33, opposite to that of its threaded end, thus permitting endwise movements of said plunger of substantially the length of the body portion of said screw, a spring 46 confined between saidslotted head and the screw 47, acting to hold the plunger 41 in its outward position as shown in Figs.

2 and 4. 49 denotes a sleeve secured by .screw 50 to the rear end of the hollow shaft shaft 29 is confined the spring 52 which nor move endwise a yoke 56 provided with a crank-arm 57 carrying a cam-plate 58, said yoke being secured to turn with said shaft by a teated screw 59 threaded into said yoke and entering a suitable slot (not shown) formed lnto said shaft, a cam lever 60 pivoted 011 a suitable pin (not shown) passing through said shaft, acting in opposition to the resiliency of the spring 61 to move said yoke toward the rear side of the machine, thus carrying said cam-plate out of effective relationship with the head e2 of the plunger 41, for a purpose later to be explained.

, 62 represents an oscillating shaft crank suitably secured upon the shaft 55 and at its free end provided with a stud-screw 63 which tracks a slot 6% formed in the segment lever slide connection 65, the lower end of the latter being provided with a suitable opening (not shown) through which extends a stud 66 threaded into the slide block 67 tracking the segmental guide-slot 34, said stud also acting as the pivotal connection for one end of the swinging gate connection 68, the opposite end of the latter being pivotally connected to the swinging gate 10 by a suitable ball joint connection 69.

70 represents a segmental slide block stop adjustably secured in the guide-slot 3%, the wing V nut 71, threaded onto the stud 66,

acting to secure the slide block 67 in given adjustment when it is desired to'effect successive zigzag stitches of a given amplitude of needle vibration, a spring 72 attached at one end, to the shaft crank 62 and at its opposite end to the connection 65 acting to normally hold the stud 63 at the lower end of the slot 6a.

73 represents a thread tension releasing crank-arm suitablv secured to the rock-shaft 55, said crank-arm, together with the shaft crank 62, acting to secure said shaft against accidental endwise movement, the crank arm being provided with a depending arm lug 74: which, when depressed, acts on the end of the tension stud 75 to move the latter in opposition to the resiliency of thcflat spring 76 and coiled spring 7 7, thus lessening the degree of tension exerted by said latter spring on the tension disks, as 78.

To the front end of the crank-arm 73 is pivotally attached one end of a link 79 whose opposite end is pivotally attached to a rock-lever 80 journaled on a stud 81 threaded into the arm bracket, and to the opposite end of said rock-lever is pivotally attached, by'stud-screw 82, a hub 83 into strength toovercome 94: respectively.

which is threaded the uper end of a treadleactuated rod 84 whiclnin practice, is operativcly connected with a suitable treadle (not shown), a spring 85 acting to normally hold, through the connections previously pointed out, the axis of the stud 66 in alinement with the flXllS of the hollow shaft 33. 86 represents one form of commonly employed spring depressed clothpresser carryingbar provided at its-lower end with a cloth-presser'87. )Vhen it is desired tostitch a figure of uniform stitches, the operator adjusts and by wing nut 71 secures the slide 67 to effect the desired amplitudeof vibration of the needle, and during the stitching operation the fabric is manually turned under the needle and if in the stitching of the design it is desired to effect the ordinary seam, the operator moves the cam-lever 60 to its ver tical position,'thus permitting the spring 61 to move the cam-plate 58 in line with the head 42 of the plunger 1 whenthe operator,

through the manipulation of a suitable treadle, rocks the shaft 55 which causes the cam-plate 58 to move the plunger ll, and

through the medium of spring 4:6 and nut 4L7, move the segment lever toward the operator a distance sufficient to release the teat 38 from engagement with the opening 40 and with the stationary lug 88 in engagement with the notch 36 formed in said segment lever, thus holdingtthe latter out of engagement with the segment lever carrier and with the needlein its outside or depth stitch position or in positionto form the ordinary seam, after which the operator returns the lever 60 to its former position, it being understood that radiall stitches of varying lengths may'be'employed through the manipulation of a suitable treadle con nected, as previously described, with the rock-shaft 55, it being understood that the spring 46 when depressed is of sufficient spring 52. V

Referring to the inventive features new to, the present construction, 89 represents a cloth-plate secured upon the bed-plate by pin 90 and catch-lever 91, the free end 92 of the latter yieldingly contacting the under side of the bed-plate, as shownin Fig. 9 to hold said cloth-plate against accidental displacement. 93 denotes an eyelet spur secured in a plate 9st slidably mounted in the cloth-plate and provided with a-needle slot 95 extending out from the eyeletspurneedle opening 96, the plate 94 beingsecured in sliding relationship with the cloth-plate by bearing brackets 97 and 98 and flange bearings 99 and 100 of the cloth-plate and plate 101 denotes a slideplate securinglever provided with teats or raised portions, as 102, and mounted to oscillate in theopening 103 in the bracket 97, the openthe strength of the' ings, as 104, in the latter coacting With the teats to permit of the adjustment of the slide-plate, the moving of said teats into engagement with the inclines, as 105, acting to secure said slide-plate in given adjustment. The present construction comprehends the employment of interchangeable slide-plates provided with such size of eyelet-spur as is essential to the design of the product.

To effect design a of Fig. 12, the operator loosens the wing nut 71, thus leaving the slide-block 07 1 free to be moved, through the connections pointed out, in the guideslot 3st by the manipulation of the treadle, previously referred to, the sequence of stitch-forming movements with respect to the eyelet-spur being as followsz suppose the eyelet-spur to be positioned to receive the needle when forming the left hand stitch, as viewed by the operator, the latter places the fabric on the cloth-plate with the spur extending up through the opening 106, when through the manipulation of the treadle, the needle is controlled to effect lateral movements to form the stitches 107 as the fabric is manually rotated about the spur, followed by an adjustment of the slideplate 94 to the left to position the fabric for the stitching of the circular design 108. To

effect the circular design 108, the operator moves the cam-lever 60 to its vertical position permitting the spring 61 to move the cam-plate 58 in line with the head 12 of the plunger a1 when the operator, through the manipulation of the treadle, rocks the shaft 55 which causes the cam-plate 58 to move the plunger ll, and through the medium of spring 4:6 and screw 4C7, move the segment lever toward the operator a distance suffi- V cient to release the teat 38 from engagement with the opening 40 and efiect its adjustment in the opening 39 which causes the needle, when forming zigzag stitches to be moved laterally equidistant across the axis of the spur as first positioned when, through the manual manipulation of the treadle, the needle is given lateral movements of vary ing degrees of amplitude as the fabric is being turned about the fabric spur.

To effect the circular design 110, the segment lever 32 is returned to its right hand or position for effecting the eyelet 107, thus placing the zero stitch at the left, the loeating of the right hand stitch dependent upon the amplitude of lateral movement given the needle. The circular design 111 is formed as in the stitching of the design 108. Design Z) of Fig. 12 will be readily understood from the method described for the stitching of design a, and that the unstitched sections are effected by bringing the needle to rest, turning the fabric the required distance and trimming out the threads leading from one to the other of the separate series of stitches.

From the foregoing it will be understood that many designs can be effected and by the employment of different colored threads adapt the designs to fabrics of different teX ture, color, weight and weave.

Having thus set forth the nature of the invention, what I claim herein is:

1. In a sewing machine for ornamental stitching, the combination with a stitch forming mechanism including a needle having stitch-forming movements in different paths, of a slide-plate provided with a fabric spur having a needle opening and a needle slot extending out from said opening in a direction corresponding to the lateral movements of said needle and adjustable to oermit of the )lacin of circularl arran ed zigzag stitches outside the field occupied by said spur.

2. In a sewing machine for ornamental stitching, the combination with a stitch forming mechanism including a needle having stitch-forming movements in different paths, of a cloth-plate and a slide-plate carried by the latter, said slide-plate being provided with a fabric spur having a needle opening and a needle slot extending out from said opening in a direction corresponding to the lateral movements of said needle and adjustable to permit of the placing of circularly arranged zigzag stitches outside the field occupied by said spur, and means for securing said slide-plate against accidental movement.-

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

WALTER MYERS.

Witnesses:

S. M. Burns, STANLEY N. SMITH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

